International Chemical Safety Cards

AMMONIUM HYDROXIDE (10%-35% solution)

ICSC: 0215

IMPORTANTDATA

PHYSICAL STATE; APPEARANCE:
VERY VOLATILE, COLOURLESS SOLUTION OF AMMONIA IN WATER
, WITH PUNGENT ODOUR.

PHYSICAL DANGERS:

CHEMICAL DANGERS:
Reacts with many heavy metals and their salts forming explosive compounds.
Attacks many metals forming flammable/explosive gas (hydrogen - see ICSC # 0001).
The solution in water is a strong base, it reacts violently with acids.

ROUTES OF EXPOSURE:
The substance can be absorbed into the body
by inhalation of its vapour or aerosol and
by ingestion.

INHALATION RISK:
A harmful contamination of the air can be reached very quickly on evaporation of this substance at 20°C.

EFFECTS OF SHORT-TERM EXPOSURE:
The substance
is corrosive to
the eyes,
the skin and
the respiratory tract.
Corrosive on ingestion as well.
Inhalation of high concentrations of vapour may cause laryngeal oedema, inflamation of the respiratory tract, and pneumonia.
The effects may be delayed.

EFFECTS OF LONG-TERM OR REPEATED EXPOSURE:
Lungs may be affected by repeated or prolonged exposure to the vapour or aerosol.

Ammonia vapour is flammable and explosive under certain conditions.
Be aware that ammonia gas can evolve from ammonia solution.
Depending on the degree of exposure, periodic medical examination is indicated.
Do NOT completely fill bottles with the substance; strong solutions may develop pressure. Release caps with care.
Other UN numbers are: UN 1005 Ammonia, anhydrous liquefied or ammonia solutions, relative density of less than 0.880 at 15°C in water, with more than 50% ammonia; UN 2073 Ammonia, 35-50%.
Also consult ICSC # 0414 Ammonia.

Neither the CEC or the IPCS nor any person acting
on behalf of the CEC or the IPCS is responsible for the use which might be made of this
information. This card contains the collective views of the IPCS Peer Review Committee and may
not reflect in all cases all the detailed requirements included in national legislation
on the subject. The user should verify compliance of the cards with the relevant legislation
in the country of use.